Dr. de Castro has a PhD in Biochemistry and Genetics (University of Texas Medical Branch), but also trained in the Neurosciences (California Institute of Technology, The Burnham Institute). His current work and interests lie in Cancer Immunology (3R Biosystems), and an advocacy for equitable access to health technologies (UnEMR). He is a Biomedical Informatics consultant of the International Atomic Energy Agency (IAEA) and a Balik Scientist under a joint research informatics project between UP Manila and UPLB. He has an B.S. MBB degree from UP Diliman.